Fish knife



FIG. 1 is a top, front, and left side perspective view displaying our new design for a fish knife;

FIG. 2 is right side elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a left side elevation view of an alternate configuration thereof;

FIG. 5 is a left side elevation view of an alternate configuration thereof;

FIG. 6 is a front elevation view thereof;

FIG. 7 is a rear elevation view thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is a bottom plan view thereof. 

CLAIM The ornamental design for a fish knife, as shown. 